10 Gallon Aquarium dimensions
Rated sizes are brim-full nominal; real water volume is lower after substrate and the air gap — read the chart at your actual water line.
| Spec | Value |
|---|---|
| Length | 20 in |
| Width | 10 in |
| Height | 12 in |
| Geometric capacity | 10.4 gal |
| Nominal rating | 10 gal |
| Liquid weight (brim-full) | 87 lb of water |
| Empty tank weight | Varies by gauge/manufacturer — see nameplate or spec sheet |
Source
Standard North American aquarium trade dimensions (20 x 10 x 12 in exterior-nominal).. Capacity figures are computed from this geometry with exact partial-fill math — see methodology.
FAQ
What are the dimensions of a 10 gallon aquarium?
20″ × 10″ × 12″ — full table above. Source: Standard North American aquarium trade dimensions (20 x 10 x 12 in exterior-nominal)..
How much does a full 10 gallon aquarium weigh?
About 87 lb of water brim-full, plus the empty tank weight.
How accurate are these figures?
Dimensions come from the sources listed; capacity is computed from exact geometry and matches our chart pages. Rated sizes are brim-full nominal; real water volume is lower after substrate and the air gap — read the chart at your actual water line.